Power supply for television and television including the same

ABSTRACT

Provided is a television apparatus including: a display panel which displays an image; a front cover which covers a front side of the television apparatus such that the display panel is exposed; a rear cover which is opposed to the front cover; a power supply which is supported between the front cover and the rear cover and includes an input connector mounted thereon to receive an input AC power for the display panel; an output connector configured to detachably coupled with the input connector to supply the input AC power, wherein the rear cover includes an inwardly-depressed portion at which a cover insertion hole is formed such that the output connector is coupled to the input connector through the cover insertion hole.

CROSS-REFERENCE TO RELATED APPLICATIONS

This is application is a Continuation of U.S. application Ser. No.15/612,515 filed Jun. 2, 2017, which is a Continuation of U.S.application Ser. No. 14/589,626 filed Jan. 5, 2015, now U.S. Pat. No.9,693,007 issued Jun. 27, 2017, which is a Continuation of U.S.application Ser. No. 14/289,310 filed May 28, 2014, now U.S. Pat. No.9,407,855 issued Aug. 2, 2016, which is a Continuation of U.S.application Ser. No. 13/867,598 filed Apr. 22, 2013, now U.S. Pat. No.8,860,889 issued Oct. 14, 2014, which is a Continuation of U.S.application Ser. No. 12/889,051 filed Sep. 23, 2010, now U.S. Pat. No.8,917,359 issued Dec. 23, 2014, which claims priority from Korean PatentApplication No. 10-2009-0093305, filed on Sep. 30, 2009 in the KoreanIntellectual Property Office, the disclosure of which is incorporatedherein by reference.

BACKGROUND 1. Field

Devices consistent with the inventive concept relate to a power supplyfor television and a television including the same, and moreparticularly, to a power supply for a television, which is capable ofminiaturization of televisions, and a television including the same.

2. Description of the Related Art

A television is an apparatus which receives and processes broadcastingsignals and displays images. In recent years, thin televisions with areduced thickness have been developed.

Such a television has a power supply which converts commercial AC powerto supply predetermined power to various kinds of electronic partswithin the television. However, thin televisions require the design ofthin power supply, and therefore there is a need for such a thin powersupply.

SUMMARY

Accordingly, it is an aspect of the exemplary embodiments to provide apower supply for a thin television and a television including the same.Another aspect of the exemplary embodiments is to provide a power supplyfor a television with improved use convenience and a televisionincluding the same.

Additional aspects of the exemplary embodiments will be set forth inpart in the description which follows and, in part, will be obvious fromthe description, or may be learned by practice of the inventive concept.

According to an aspect of an exemplary embodiment, there is provided apower supply for a television, the power supply including: a rectifierwhich rectifies input AC power; a converter which converts the rectifiedpower into DC power through a switching control; a circuit board onwhich at least one of the rectifier and the converter is mounted; and aninput connector which receives the AC power from an external source andis mounted on the circuit board such that a projecting height of theinput connector projecting from the circuit board is substantially equalto or smaller than a projecting height of at least one of the rectifierand the converter.

The input connector may be mounted to the circuit board along adirection substantially perpendicular to the circuit board.

The input connector may include an input terminal which receives the ACpower, having one end portion which is accommodated in the inputconnector and another end portion which is mounted on the circuit boardfor receiving the AC power.

The input connector may further include a shield which prevents theinput terminal from being exposed in an upper direction of the circuitboard.

The input connector may further include a coupling pin which projectstoward the circuit board and couples the input connector to the circuitboard.

The circuit board may include a connector accommodating hole whichaccommodates the input connector.

The input connector may include a hook which is hooked to a hoop of theconnector accommodating hole of the circuit board.

The input connector may further include arms extending in a planedirection of the circuit board.

The arms may be respectively formed at both sides of the input connectorwith the connector accommodating hole interposed between the arms.

The input connector may further include: a fastening hole which isformed in at least one of the arms to fasten the input connector to thecircuit board by a fastener; and a coupling pin which is formed in atleast one of the arms, projects toward the circuit board and is coupledto the circuit board by welding.

The circuit board may further include an element accommodating holewhich accommodates at least one of electronic elements constituting therectifier and the converter.

According to an aspect of another exemplary embodiment, there isprovided a television including: an image receiving unit which receivesan image signal; an image processing unit which processes the receivedimage signal; a display panel which displays the processed image signal;a backlight unit which irradiates the display panel with light; a powersupply according to any one of the aspects, which supplies power to atleast one of the image receiving unit, the image processing unit and thebacklight unit; and an output connector which is coupled to the inputconnector of the power supply for inputting AC power to the powersupply.

The television may further includes: a front cover which covers a frontside of the television in such a manner that the display panel isexposed; and a rear cover which is opposed to the front cover,accommodates the image receiving unit, the image processing unit, thebacklight unit and the power supply, and includes a depressed portiondepressed toward the front cover.

The rear cover may include a cover insertion hole formed at one side ofthe depressed portion, and the power supply may be accommodated in therear cover in such a manner that the input connector is coupled to theoutput connector through the cover insertion hole.

According to an aspect of the exemplary embodiments, it is possible toprovide a power supply for a thin television and a television includingthe same. According to another aspect of the exemplary embodiments, itis possible to provide a power supply for a television with improved useconvenience and a television including the same.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects will become apparent and more readilyappreciated from the following description of the exemplary embodiments,taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic block diagram of a television according to a firstexemplary embodiment;

FIG. 2 is a schematic block diagram of a power supply of FIG. 1;

FIG. 3 is a perspective view of main parts of the power supply of FIG.2;

FIGS. 4A to 4C are a schematic perspective view, a schematic side viewand a schematic front view of an input connector of the power supply ofFIG. 2, respectively;

FIG. 5 is a schematic perspective view of an input connector of a powersupply and an output connector coupled to the input connector accordingto a second exemplary embodiment;

FIG. 6 is a schematic sectional view showing connection of the inputconnector and the output connector of FIG. 5;

FIG. 7 is a schematic perspective view of an input connector of a powersupply and an output connector coupled to the input connector accordingto a third exemplary embodiment;

FIG. 8A is a plan view of main parts of a circuit board of FIG. 7;

FIG. 8B is a schematic rear perspective view of an input connector ofFIG. 7;

FIG. 9 is a schematic rear view of a television according to the thirdexemplary embodiment; and

FIG. 10 is an enlarged perspective view of main parts in FIG. 9.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Reference will now be made in detail to the exemplary embodiments,examples of which are illustrated in the accompanying drawings, so thatthose in the art can easily practice the exemplary embodiments. Thepresent inventive concept is not limited to exemplary embodimentsdisclosed herein but may be implemented in different forms.

In the following exemplary embodiments, for the purpose of clarity, thesame components are denoted by the same reference numerals throughoutthe drawings, and explanation thereof will be representatively given ina first exemplary embodiment but will be omitted in other embodiments.Expressions such as “at least one of,” when preceding a list ofelements, modify the entire list of elements and do not modify theindividual elements of the list.

FIG. 1 is a schematic block diagram of a television 100 according to afirst exemplary embodiment. As shown in FIG. 1, the television 100includes an image receiving unit 110 which receives an image (e.g., animage signal), an image processing unit 120 which processes the receivedimage, a display panel 130 which displays the processed image, abacklight 140 which illuminates the display panel 130 with light, and apower supply 200 which supplies power to the above components 110, 120,130, and 140.

The image receiving unit 110 may include a broadcasting tuner whichreceives radio frequency (RF) signals from an external source by awireless or wired connection. In some cases, the image receiving unit110 may receive image signals in compliance with composite video,component video, super video, high definition multimedia interface(HDMI) standards and the like.

The image processing unit 120 processes the image signal transmittedfrom the image receiving unit 110 according to various preset imageprocesses. Examples of the image processing processes performed by theimage processing unit 120 may include decoding and/or encoding,de-interlacing, frame refresh rate conversion, scaling, noise reductionfor improved image quality, detail enhancement, and so on. Of course,the above image processing is merely an example, and may be modified orimproved in various manners. The image processing unit 120 may be acombination of individual elements which perform the above-describedimage processes independently, or alternatively may be an integratedtype incorporating the above-described image processes.

The display panel 130 may include a liquid crystal panel. The liquidcrystal panel includes a liquid crystal layer (not shown) interposedbetween two substrates (not shown) and displays an image by adjustingorientation of liquid crystal molecules in the liquid crystal layer.However, it is understood that the display panel 130 is not limited to aliquid crystal panel in another exemplary embodiment. For example, thedisplay panel 130 may be a plasma display, an organic light emittingdiode (OLED) display, or any flat panel display or the like.

The backlight unit 140 includes: a light guide plate 143 having anincidence surface into which light is incident, and an emitting surfacethrough which the light is emitted to the display panel 130; a lightsource 141 which emits the light toward the incidence surface of thelight guide plate 143; optical sheets (not shown) which adjustcharacteristics of the light emitted through the emitting surface of thelight guide plate 143; and a light source driver 145 which drives thelight source 141.

The light source 141 may include, for example, at least one of lightemitting diodes (LEDs) and cold cathode fluorescent lamps (CCFLs).Furthermore, the light source 141 may include red, green and blue LEDsor may implement white light by mixing red, green and blue light emittedfrom the respective color LEDs. The light source 141 may be arrangedaccording to an edge type where the light source is arranged along anedge of the display panel 130, a direct type where the light source isarranged in a rear side of the display panel 130, or a hybrid type whichis a combination of the edge type and the direct type. The light sourcedriver 145 controls a switching ON/OFF of the light source 141.

The power supply 200 receives commercial AC power S and converts thereceived AC power S into power used by at least one of theabove-described image receiving unit 110, image processing unit 120,display panel 130, and backlight unit 140.

As shown in FIGS. 2 and 3, the power supply 200 may include: a circuitboard 201; an input connector 210 which is provided on the circuit board201 to receive the commercial AC power S; a rectifier 220 whichrectifies the input AC power; a DC-DC converter 230 which converts a DCoutput from the rectifier 220 into DC power used by one or more of thecomponents 110, 120, 130 and 140 in the television 100; and an outputport 250 through which the DC power from the DC-DC converter 230 isoutput.

The output port 250 may be provided to output the DC power from theDC-DC converter 230 to at least one of the image receiving unit 110,image processing unit 120, display panel 130, and/or backlight unit 140.The output port 250 may also be detachably connected to power inputconnectors (not shown) provided in the components 110, 120, 130 and 140.In some cases, the output port 250 may be omitted.

In this exemplary embodiment, the power supply 200 may further includean output connector 270 which is detachably coupled to the inputconnector 210. The output connector 270 may be formed at one end portionof a cord L connected to the commercial AC power S in correspondencewith the input connector 210. In some cases, however, the outputconnector 270 and the input connector 210 may be formed on anon-correspondence basis. To this end, a transducer (not shown) whichenables input and/or output of signals having different formats(so-called “gender”) may be interposed between the output connector 270and the input connector 210.

Moreover, in this exemplary embodiment, an electric outlet (not shown)connecting to the commercial AC power S may be formed at the other endportion of the cord L. The electric outlet (not shown) may be modifiedin various ways in consideration of different national standards.

The rectifier 220 may include rectifying diodes (not shown) whichrectify the AC power into the DC power. The rectifier 220 may furtherinclude a smoothing part (not shown) which smoothes the DC power.

The DC-DC converter 230 may include a transformer (not shown) and apower switching element (not shown) which switches the transformer (notshown).

In this exemplary embodiment, all of the input connector 210, rectifier220, DC-DC converter 230 and output port 250 may be arranged on a singlecircuit board.

FIG. 3 is a main part perspective view of the input connector 210 andelectronic elements 223 constituting the rectifier 220 in the powersupply 200 according to an exemplary embodiment. As shown in FIG. 3, theinput connector 210 may be arranged on the circuit board 201 in such amanner that a height H of the input connector 210 projecting from a topsurface 201 a of the circuit board 201 is substantially equal to or lessthan a projecting height of at least one of the rectifier 220 and theDC-DC converter 230.

In this exemplary embodiment, the projecting height of the rectifier 220and the DC-DC converter 230 refers to a greatest height of respectiveelectronic elements constituting the rectifier 220 and the DC-DCconverter 230, which projects from the top surface 201 a of the circuitboard 201.

Here, the phase “substantially equal to” means that the projectingheight H of the input connector 210 is equal to the projecting height ofthe rectifier 220 and/or the DC-DC converter 230 within a predeterminedrange. In this exemplary embodiment, the predetermined range may beabout 5 mm. For example, even if the projecting height H is greater thanthe projecting height of the rectifier 220 and the DC-DC converter 230by about 5 mm, it can be considered that the input connector 210, therectifier 220 and the DC-DC converter 230 have substantially the sameheight.

In this exemplary embodiment, at least one of the electronic elements223 (for example, a capacitor and so on) constituting the rectifier 220may be received in an element receiving hole 203 formed in the circuitboard 201. If the at least one electronic element 223 is provided on thecircuit board 201 in a typical manner, its projecting height H1 willcorrespond to a body height which is greater than the projecting heightH1, as shown in FIG. 3.

However, in the power supply 200 of this exemplary embodiment, theelectronic element 223 may lay flat such that a lead of the electronicelement 223 travels in parallel to the top surface 201 a of the circuitboard 201. In addition, the electronic element 223 may be formed on aseparate element board 224 to support the electronic element 223 stably,with the element board 224 communicably connected to the circuit board201.

This allows the projecting height H1 of the electronic element 223 fromthe top surface 201 a of the circuit board 201 to be reduced, which mayresult in a thinner power supply 200. In this exemplary embodiment, theelectronic element 223 is merely one example of elements constitutingthe rectifier 220, but it should be understood that other electronicelements constituting the power supply 200 may be provided on thecircuit board 201.

As shown in FIGS. 3 and 4A to 4C, the input connector 210 includes: aconnector casing 212; a plurality of insertion holes 213 formed in theconnector casing 212; and a plurality of input terminals 211 includingrespective one end portions 211 d, 211 e and 211 f accommodated in theplurality of insertion holes 213 of the connector casing 212 andrespective other end portions 211 a, 211 c and 211 b exposed out of theconnector casing 212 to be connected to the circuit board 201. The otherend portions 211 a, 211 c and 211 b of the plurality of input terminals211 may be soldered to the circuit board 201. In this exemplaryembodiment, the other end portions 211 a, 211 c and 211 c may be formedto be bent toward the circuit board 201.

A mis-insertion preventing portion 213 a which prevents the outputconnector 270 from being inserted erroneously may be formed in at leastone of the plurality of insertion holes 213.

In addition, the input connector 210 may be supported to the circuitboard 201 by a solder bond between the other end portions 211 a, 211 cand 211 b of the input terminals 211 and the circuit board 210. Forexample, if an attachment/detachment cycle of the input/outputconnectors 210 and 270 is relatively long (for example, if theinput/output connectors 210 and 270 are designed to be attached/detachedby a serviceman other than a common user), the input connector 210 maybe fixed to the circuit board 201 by the input terminal 211 withoutusing a separate coupling pin which will be described later.

The input terminals 211 may include a (+) electrode terminal 211 a whichreceives (+) power from the commercial AC power S, a ground terminal 211c for ground, and a (−) electrode terminal 211 b which receives (−)power of the commercial AC power S.

The output connector 270 includes a plurality of projecting insertionportions 271, 272 and 273 which are adapted to be respectively insertedin the plurality of insertion holes 213 of the input connector 210. Theplurality of projecting insertion portions 271, 272 and 273 may beformed to correspond to the plurality of insertion holes 213 of theinput connector 210. If they do not correspond to each other, theplurality of projecting insertion portions 271, 272 and 273 and theplurality of insertion holes 213 can be communicably connected with eachother through the above-mentioned transducer (not shown) (so-called“gender”) interposed between the output connector 270 and the inputconnector 210.

Output terminals (not shown) through which the (+) power and (−) powerof the commercial AC power S are output are formed in the plurality ofprojecting insertion portions 271 and 273. The projecting insertionportion 272 may be formed as a ground terminal for ground.

The output connector 270 may include a pair of hooks 274 with theplurality of projecting insertion portions 271, 272 and 273 interposedtherebetween. The pair of hooks 274 is inserted in the plurality ofinsertion holes 213 of the input connector 210 and engages withcorresponding hitches (not shown) formed in the insertion holes 213.Accordingly, the input/output connectors 210 and 270 are joined to eachother to allow the commercial AC power S to be delivered to the powersupply 200. When end portions of the hooks 274 are pressed down andpulled, the hooks 274 are released from the hitches (not shown) to allowthe output connector 270 to be removed from the input connector 210.

The input connector 210 further includes coupling pins 214 provided onthe connector casing 212. In this exemplary embodiment, the connectorcasing 212 may be made of a plastic material and the coupling pins 214may be made of a metal material, though it is understood that allembodiments are not limited thereto. The input connector 210 may beintegrated with the coupling pins 214 by insert molding. The couplingpins 214 project toward the circuit board 201 to couple the inputconnector 210 to the circuit board 201. The coupling pins 214 may becoupled to the circuit board 201 by soldering.

A power supply according to a second exemplary embodiment includes aninput connector 310 as shown in FIGS. 5 and 6. A television according tothe second exemplary embodiment includes: the power supply of the secondexemplary embodiment; and an output connector 370 which suppliescommercial AC power to the input connector 310. Other components in thisembodiment have the same configuration and operation as those in thefirst exemplary embodiment, and therefore, explanations thereof will notbe repeated. In this exemplary embodiment, the input connector 310 hastwo input terminals 312, while the input connector 210 described in thefirst exemplary embodiment has three input terminals 211.

The input connector 310 includes: a connector casing 311; an insertionhole 313 formed in the connector casing 311; and a plurality of inputterminals 312 having one end portions 312 c and 312 b accommodatedwithin the insertion hole 313 and other end portions 312 a exposed outof the connector casing 311 to be inserted in the circuit board 201.

The other end portions 312 a of the plurality of input terminals 312 maybe coupled to the circuit board 201 by soldering. The input connector310 can be supported to the circuit board 201 by soldering between theinput terminals 312 an the circuit board 201.

The insertion hole 313 may be partitioned into a plurality of insertionholes 313 a, 313 b and 313 c into which a plurality of projectinginsertion portions 371, 372 and 373 of the output connector 370 isrespectively inserted. The insertion hole 313 may further include amis-insertion preventing portion 313 d which prevents the outputconnector 370 from being inserted erroneously.

Output terminals 375 for (+) and (−) power output of the commercial ACpower S are respectively formed within the projecting insertion portions371 and 373, which are disposed at both sides of the output connector370, of the plurality of projecting insertion portions 371, 372 and 373.

Exposure holes 376 for exposing a portion of the output terminals 375externally may be formed at one side of the projecting insertionportions 371 an 373 at which the output terminals 375 are formed. Theexposure holes 375 may be formed to direct to the top surface of thecircuit board 201.

In addition, the output connector 370 may further include a plurality ofhooks 374 at both sides, with the plurality of projecting insertionportions 371, 372 and 373 interposed therebetween. The input connector310 may further include a plurality of hitches 315 provided opposite tothe plurality of hooks 374.

When the output connector 370 is inserted in the input connector 310,hooking pieces 374 b formed at one end portions of the hooks 374 climbover inclined surfaces 315 a of the hitches 315 and engage with thehitches 315. Accordingly, the input/output connectors 310 and 370 can bestably joined to each other. On the other hand, when the outputconnector 370 is pulled while pressing down grippers 374 a formed at theother end portions of the plurality of hitches 315, the output connector370 can be detached from the input connector 310 as the hitches 315 arereleased from the hooks 374.

The input connector 310 may further include coupling pins 314 for morestably coupling the input connector 310 to the circuit board 201 inaddition to the soldering of the input terminals 312 to the circuitboard 201. The coupling pins 314 may be provided to project from theconnector casing 311 toward the circuit board 201. The coupling pins 314may be made of a metal material. The coupling pins 314 and the connectorcasing 311 may be extruded by insert molding. Furthermore, the couplingpins 314 may be inserted in and coupled to the circuit board 201 bysoldering.

In addition, the input connector 310 may further include a shield 316which prevents the input terminals 312 from being exposed in the upperdirection of the circuit board 201.

FIG. 6 is a sectional view showing a state where the output connector370 is joined to the input connector 310 according to an exemplaryembodiment. As shown in FIG. 6, the output terminal 375 of the outputconnector 370 contacts the input terminal 312 of the input connector310.

Hereinafter, a power supply 200 a according to a third exemplaryembodiment will be described with reference to FIGS. 7 and 8A to 8B.Referring to FIGS. 7 and 8A to 8B, an output connector 470 is formed atan end portion of a cord L connected to the commercial AC power. Only(+) and (−) power terminals without any ground terminal may be providedin the output connector 470.

In this exemplary embodiment, the power supply 200 a includes an inputconnector 410 and a television including the power supply 200 a includesthe output connector 470.

The input connector 410 includes: a connector casing 411; an insertionhole 413 formed in the connector casing 411; and a plurality of inputterminals 412 having one end portions accommodated in the insertion hole413 and other end portions 412 b bent toward the circuit board 201.

In this exemplary embodiment, the insertion hole 413 may include arectangular hoop 413 a with substantially right-angled edges and acircular hoop 413 b. The rectangular hoop 413 a serves to prevent theoutput connector 470 from being inserted erroneously. It is understoodthat the shape of the insertion hole 413 is not limited to therectangular hoop 413 a and the circular hoop 413 b, and may vary inother embodiments. For example, the shape of the insertion hole 413 maybe modified according to national standards.

The input connector 410 may be accommodated in a connector accommodatinghole 201 b of the circuit board 201. The connector accommodating hole201 b may be formed by cutting out one side of the circuit board 201.When the input connector 410 is accommodated in the circuit board 201 bya thickness (t) of the circuit board 201, a height (K) of the inputconnector 410 from the top surface 201 a of the circuit board 201becomes lower than a height (J) of the input connector 410 itself. Thismay result in a thinness of the power supply 200 a.

The input connector 410 may further include board hooks 417 which can behooked to a hoop of the connector accommodating hole 201 b of thecircuit board 201. The board hooks 417 prevent the input connector 410from being upwardly separated from the circuit board 201. The boardhooks 417 may be respectively formed at both sides of the connectorcasing 411 with the connector accommodating hole 201 b interposedtherebetween.

The input connector 410 may further include arms 418 extending from theconnector casing 411 in the plane direction of the circuit board 201.The arms 418 may be respectively formed at both sides of the connectorcasing 411 with the connector accommodating hole 201 b interposedtherebetween.

In addition, the input connector 410 may further include coupling pins416 which couple the connector casing 411 to the circuit board 201. Inthis exemplary embodiment, the coupling pins 416 may be made of a metalmaterial and the connector casing 411 may be made of a plastic resin.The input connector 410 may be formed to be integrated with the couplingpins 416 by insert molding. The coupling pins 416 may be coupled to thecircuit board 201 by soldering. This allows the input connector 410 tobe more stably supported to the circuit board 201.

In addition, the input connector 410 may further include fastening holes415 in which fasteners (not shown) which fasten the connector casing 411to the circuit board 201 are inserted. This allows the input connector410 to be stably coupled to the circuit board 201 even when a commonuser relatively frequently attaches/detaches the output connector 470to/from the input connector 410. In this exemplary embodiment, thefastening holes 415 may be formed with the connector accommodating hole201 b interposed therebetween. The fastening holes 415 and the couplingpins 416 may be formed in the arms 418.

The input connector 410 may further include a shield 414 which preventsthe input terminals 412 from being exposed in the upper direction of thecircuit board 201. The shield 414 may be integrated with the connectorcasing 411. This eliminates a need to form a separate shield in thecircuit board, which may result in improved assembleability.

FIG. 8A is an enlarged view of main parts of the circuit board 201 onwhich the input connector 410 is mounted. Referring to FIG. 8A, aroundthe connector accommodating hole 201 b may be formed board fasteningholes 201 c corresponding to the fastening holes 415 of the inputconnector 410; pin holes 201 d in which the coupling pins 416 areinserted; and terminal holes 201 e in which the other end portions 412 bof the input terminals 412 are inserted.

Hereinafter, a television 100 a according to the third exemplaryembodiment will be described with reference to FIGS. 9 and 10. FIG. 9 isa schematic rear view of the television 100 a and FIG. 10 is an enlargedperspective view of main parts in FIG. 9. In the third exemplaryembodiment, the television 100 a includes the above-described powersupply 200 a.

The television 100 a further includes a front cover (not shown); and arear cover 170 which is detachably coupled to the front cover (notshown). Between the front cover and the rear cover 170 may beaccommodated the image receiving unit (110 in FIG. 1); the imageprocessing unit (120 in FIG. 1); the display panel (130 in FIG. 1); thebacklight unit (140 in FIG. 1) (all of which have been described in thefirst exemplary embodiment); and the power supply 200 a. The displaypanel 130 is accommodated in such a manner that a screen displayed onthe front cover is exposed. At least one of the front cover and the rearcover 170 may be made of an aluminum material. This allows heatgenerated in the backlight unit 140 to be more smoothly exhaustedexternally.

The rear cover 170 may further include an inwardly-depressed portion173. At one side of the depressed portion 173 may be formed a coverinsertion hole 173 a in which the output connector 470 is inserted.

The power supply 200 a may be supported between the front cover and therear cover 170 such that the insertion holes 413 of the input connector410 can communicate to the cover insertion hole 173 a. Accordingly,power can be supplied to the television 100 a when a common user insertsthe output connector 470 in the cover insertion hole 173 a of thedepressed portion 173.

While a so-called LCD television using a liquid crystal display panel asone example of display panels has been shown and described above, it isto be understood that the above-described input connector 210, 310, and410 and output connector 270, 370, and 470 can be employed for othertelevisions using a plasma display panel (PDP), an active-matrix organiclight emitting diode (AMOLED) panel, or other types of display panels.

In addition, it is to be understood that the scheme for cutting out aportion of the circuit board 201 and accommodating the connector 410 inthe portion as described in the third exemplary embodiment can beequally applied to the first and second exemplary embodiments.

Although a few exemplary embodiments of the present invention have beenshown and described, it will be appreciated by those skilled in the artthat changes may be made in these embodiments without departing from theprinciples and spirit of the invention, the scope of which is defined inthe appended claims and their equivalents.

What is claimed is:
 1. A display apparatus comprising: a display panelconfigured to display images based on an image signal; and a powersupply configured to supply electrical power to the display panel,wherein the power supply comprises: a circuit board having boardfastening holes; a power input connector mounted on the circuit board todetachably connect with an output connector and configured to supplyinput AC power, the power input connector comprising: a first arm; and asecond arm extending in a plane direction of the circuit board; at leastone of the first and second arms comprising a pair of portions whichextend from each other, each of the pair of portions having a connectorfastening hole, and fasteners inserted in the board fastening holes andthe connector fastening holes to fasten the power input connector to thecircuit board, and wherein sizes of the connector fastening holescorresponding to each of the pair of portions are different from eachother.
 2. The display apparatus according to claim 1, wherein sizes ofthe board fastening holes corresponding to each of the connectorfastening holes are different from each other.
 3. The display apparatusaccording to claim 1, wherein shapes of the connector fastening holescorresponding to each of the pair of portions are different from eachother.
 4. The display apparatus according to claim 1, wherein one of thefasteners is a coupling pin.
 5. The display apparatus according to claim4, wherein the coupling pin is provided at a first portion of the pairof portions which is provided farther than a second portion of the pairof portions from an edge of the circuit board.
 6. The display apparatusaccording to claim 4, wherein the connector fastening hole, in which thecoupling pin is inserted, has a rectangular shape.
 7. The displayapparatus according to claim 1, wherein the first arm and the second armextend from a first side and a second side opposite from the first sideof a connector casing of the power input connector.
 8. The displayapparatus according to claim 1, wherein the power supply furthercomprises: a rectifier configured to rectify the input AC power; and aconverter configured to convert the rectified AC power into DC powerthrough a switching control, and wherein at least one of the rectifierand the converter is mounted on the circuit board.
 9. The displayapparatus according to claim 8, wherein a projecting height of the powerinput connector projecting from the circuit board is smaller than aprojecting height of the rectifier mounted on the circuit board.
 10. Thedisplay apparatus according to claim 1, wherein the power inputconnector is mounted to the circuit board adjacent to an edge of thecircuit board.
 11. The display apparatus according to claim 1, whereinthe power input connector comprises at least one input terminalconfigured to receive the input AC power, each of the at least one inputterminal comprising: a first end portion which is accommodated in thepower input connector; and a second end portion opposite to the firstend portion which is mounted on the circuit board.
 12. The displayapparatus according to claim 11, wherein the power input connectorfurther comprises a shield configured to prevent the at least one inputterminal from being exposed in a direction away from the circuit board.13. The display apparatus according to claim 1, wherein the first andsecond arms are provided at a first side and a second side opposite tothe first side, respectively, of the power input connector with aconnector accommodating hole of the circuit board interposed between thefirst and second arms.
 14. The display apparatus according to claim 13,wherein the power input connector comprises a hook extending from eachof the first and second arms and attached to a hoop of the connectoraccommodating hole of the circuit board.
 15. The display apparatusaccording to claim 1, wherein the display apparatus is a televisionapparatus having an image receiving unit configured to receive imagesignals, and wherein the power supply is configured to supply electricalpower to the image receiving unit.